Re: [Xen-devel] [PATCH RFC 09/13] xen: change quality of the MADT ACPI enumerator

From: Andrew Cooper <andrew.cooper3_at_citrix.com>
Date: Fri, 14 Feb 2014 01:49:24 +0000
On 08/02/2014 21:42, John Baldwin wrote:
> On Tuesday, December 24, 2013 12:20:58 PM Roger Pau Monne wrote:
>> Lower the quality of the MADT ACPI enumerator, so on Xen Dom0 we can
>> force the usage of the Xen mptable enumerator even when ACPI is
>> detected.
> Hmm, so I think one question is why does the existing MADT parser
> not work with the MADT table provided by Xen?  This may very well
> be correct, but if it's only a small change to make the existing
> MADT parser work with Xen's MADT table, that route might be
> preferable.
>

For dom0, the MADT seen is the system MADT, which does not bear any
reality to dom0's topology.  For PV domU, no MADT will be found.  For
HVM domU, the MADT seen ought to represent (virtual) reality.

~Andrew
Received on Fri Feb 14 2014 - 00:49:35 UTC

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